Having tried both, this is the closest thing I could come up with, though demo shows just very little of the full game.
Going by the main aspect of any game, the game play, Fifa 12 although impressing me with the new defensive system, which makes the game more challenging, which cant be said about the predecessors' where the defensive system seemed too easy and unrealistic, you just touch the opposition player with the ball and practically the ball glues onto your feet!
PES12 seemed more smoother and fluid, something which cant be said about PES11, which was a big disappointment last year. I played both Fifa 12 and PES 12 yesterday for considerable amount of time and came to a conclusion with both games having a good gameplay, but PES12 seemed more enjoyable and going by that i think PES12 just nicks it for me.
So overall Fifa 12 offers the better package, but going by the gameplay PES12 seemed more enjoyable.
PES 12 vs FIFA 12 [DEMO]
